Improvement in sash-holders



@timid hm lil Letters Patent No.'113,275, dated April 4, 1871.

IMPROVEMENT IN sAsH-HoLDERs.

The Schedule referred to these Lett-ers P atent and making part of thesame.

To alt whom Ait may concern .Beit known that I, JOHN F. DLN'GEE, ofBedford Station, in the county of Vestchester and State of N ew York,have invented a new and improved Window-Regulator; and I do herebydeclare that the following' is a full, clear, and exact descriptionthereof, which will enable those skilled in the art to make and use thesaine, reference being had to the accompanying drawingforming part ofthis specification.

MyA invention relates to sash-holders, and consists in the improvedcombination of parts hereinafter described, and more particularlypointed out in the claim.

The drawingr represents a vertical section of the sash-regulator,showing the parts of which it is composed, and the manner of itsapplication and operation.

A represents the window-sash in red, and as seen in the drawing the lockis applied to its edge as when holding it'up.

B is the case or frame of the lock.

C is the roller, which is attached to plates D by a central pivot, e.

F is a ratchet, lwhich is attachedvto'the roller C and is revolved withit.

G is a triangular-hooked ratchet-pawl, which is also attached to one ofthe plates D by pivot at h.

rlhe plates D are pivoted to another movable plate, i, through .whichplate the screw J passes, and in which it works.

The screw is fixed as regards its longitudinal mo-` tion, oneoil itsbearings upon which it revolves being in the vertical bar o, and theother, or its end, having a bearing in the frame B, as secn in thedrawing at p.

It will be seen that, as the screw works inthe plate or stud i, uponrevolving or turning the screw the plate D and the roller will be movedout or in, and

thereby the roller will be made to bear more or less against the sash.This adjustment is necessary to adapt the lock to sashes of di'ereutsize or weight.

When the sash is being raised the hooked pawl Gr will not act on theratchet to hold it, as seen, as at a certain point the ratchet is thrownout of reach of the pawl; but when the-weight ofthe sash brings the downpressure on the roll the 4ratchela-teeth are thrown into the hookedpawl, as represented in the drawing. lhe roller C is made of rubber orsome elastic ma 'ter-ial, so as to create the necessary frictionwhen itis pressed against the sash. Being prevented by the ratchet and pawlfrom turningwhen presseddowm' ward by the sash, the friction thuscreated holds the sash in any desired position.

'n is a spring, which bears against the pawl to press it down so as toengage with the ratchet, as seen.

This sash-regulator may be applied to the sashes of any window, thusaiording all the conveniences for sustaining the sashes in any desiredposition that can be derived fromthe expensive box window-frame with itsweights, pulleys. and cords:

Having thus described my invention,

I claim as new-and desire to secure by Letters Patent- A The pivotedroller C, ratchet F, and spring-hook pawl G n, combined as describedwith pivoted plates D, movable plate i, and swiveled scre'w J, for thepurpose specified. l

JOHN DINGEE.

Witnesses:

DANIEL D. GRIFFIN, GEORGE F. Santas.

